Overview
The Siemens SITRANS LU 01 level monitor (7ML5004-1AA10-1A) is an ultrasonic long-range level monitoring system designed for continuous, non-contact measurement of liquids, slurries, and bulk solids. This single-point evaluation unit delivers measurement capabilities up to 60 m (200 ft) and integrates seamlessly into Siemens automation networks. Its Smartlinx ready architecture enables straightforward integration with Siemens industrial control systems for real-time level data acquisition and process monitoring.
Key Features
- Single ultrasonic measuring point for dedicated tank or vessel level monitoring
- Non-contact measurement eliminates mechanical wear and contamination concerns
- Extended range capability up to 60 m (200 ft) for large reservoirs and outdoor applications
- Smartlinx ready—prepares system for future digital communication module integration
- Wall-mount enclosure (NEMA/TYPE 4X, 6; IP67 rated) for protected installation in harsh environments
- Input voltage flexibility: 100/115/200/230 V AC with selector switch for global deployment
Technical Specifications
- Measurement points: 1 (LU 01 version)
- Measurement technology: Ultrasonic
- Maximum range: 60 m (200 ft)
- Input voltage: 100/115/200/230 V AC (voltage selector switch)
- Enclosure: Wall mount
- Enclosure rating: NEMA/TYPE 4X, 6; IP67
- Data communication: Smartlinx ready (no module included)
- Measured media: Liquids, slurries, bulk solids
- Certifications: CE, CSA NRTL/C, FM
Typical Applications
The SITRANS LU 01 serves process industries requiring robust, long-range level detection:
- Water treatment and wastewater—monitoring clarifiers, tanks, lagoons
- Chemical and petrochemical—inventory and safety level control
- Food and beverage—ingredient storage and finished product tanks
- Mining and aggregates—bulk solids silos and stockpiles
- Utilities and municipal services—large reservoir and distribution tank management
Compatibility & Replacements
The 7ML5004-1AA10-1A is the single-channel LU 01 configuration. The related 7ML5004-2AA10-1A provides dual-point measurement (LU 02 version) for applications requiring simultaneous high/low alarm points or redundant sensing. Both variants support Smartlinx readiness and share the same input voltage specifications and enclosure ratings. When upgrading to modern Siemens level monitoring, consult the SITRANS L continuous transmitter series (4–20 mA/HART) for analog alternatives, or the SITRANS LB series for compact float-based solutions.
